The poster is trying to tell people not to worry and they can beat Germany again as they have beat Germany before.

The picture is trying to show that the old German soldiers are defeated and the Nazi being defeated.

the slogan is helping by making it seem like it will be easy to defeat the Germans as they have done it before.

The size and dark colouring of the slogan is helpful as it draws people in to read it as it is so bold.

We'll Beat Them Again